.page-footer-nav {
  position: fixed;
  bottom: 0px;
  left: 0px;
  width: 100%;
  height: 50px;
  box-sizing: border-box;
  padding: 10px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: white;
  z-index: 2;
  // 伪类实现了移动端1px的边框
  &::after {
    z-index: 1;
    content: '';
    display: block;
    width: 200%;
    height: 200%;
    position: absolute;
    top: 0;
    left: 0;
    border-top: 1px solid #ccc;
    box-sizing: border-box;
    -webkit-transform: scale(0.5);
    transform: scale(0.5);
    transform-origin: top left;
  }
  > div {
    z-index: 2;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    > div {
      margin-bottom: 5px;
      font-size: 20px;
    }
  }
  .active {
    color: #121111;
    font-weight: 600;
    transition: color 0.3s;
  }
}
